(7%) Problem 2: A runaway train car that has a mass of 15500 kg travels at a speed of 5.7 m/s down a track. Randomized Variables m = 15500 kg v = 5.7 m/s F= 1300 N DA 50% Part (a) What is the time required for a force F to bring the car to rest, expressed in terms of m, v, and F? At = 7 9. HOME a 4 6. g 1 2. 3 k 0. END Vol BACKSPACE CLEAR Submit Hint Feedback I give up! Hints: 3% deduction per hint. Hints remaining: 1 Feedback: 2% deduction per feedback. E A 50% Part (b) Compute this time, in seconds, for a force of 1300 N.

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HELAPEI L
Class Management | Help
Ch 8: Momentum Begin Date: 11/1/2020 12:01:00 AM -- Due Date: 11/16/2020 11:59:00 PM End Date: 11/27/2020 11:59:00 PM
(7%) Problem 2: A runaway train car that has a mass of 15500 kg travels at a speed of 5.7 m/s down a track.
Randomized Variables
m=15500 kg
v= 5.7 m/s
F=1300 N
4 50% Part (a) What is the time required for a force F to bring the car to rest, expressed in terms of m, v, and F?
Grade Summary
At=
Deductions
0%
Potential
100%
7.
8.
HOME
Submissions
F
4
Attempts remaining: 5
(4% per attempt)
a
j
1
detailed view
k
0.
END
S.
V
VOI BACKSPACE
DEL
CLEAR
Submit
Hint
Feedback
I give up!
Hints: 3% deduction per hint. Hints remaining: 1
Feedback: 2% deduction per feedback.
50% Part (b) Compute this time, in seconds, for a force of 1300 N.
All content 2020 Expert TA, LLC
9.
6
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Transcribed Image Text:pr.theexpertta.com/Common/lakeTutorialAssignment.aspx HELAPEI L Class Management | Help Ch 8: Momentum Begin Date: 11/1/2020 12:01:00 AM -- Due Date: 11/16/2020 11:59:00 PM End Date: 11/27/2020 11:59:00 PM (7%) Problem 2: A runaway train car that has a mass of 15500 kg travels at a speed of 5.7 m/s down a track. Randomized Variables m=15500 kg v= 5.7 m/s F=1300 N 4 50% Part (a) What is the time required for a force F to bring the car to rest, expressed in terms of m, v, and F? Grade Summary At= Deductions 0% Potential 100% 7. 8. HOME Submissions F 4 Attempts remaining: 5 (4% per attempt) a j 1 detailed view k 0. END S. V VOI BACKSPACE DEL CLEAR Submit Hint Feedback I give up! Hints: 3% deduction per hint. Hints remaining: 1 Feedback: 2% deduction per feedback. 50% Part (b) Compute this time, in seconds, for a force of 1300 N. All content 2020 Expert TA, LLC 9. 6 2.
Expert Solution
Step 1

Given data:

Mass of the car is,

m= 15500 kg

Initial velocity of the car is,

u= 5.7 m/s

Force applied is,

F= 1300 N

Formula used:

 According to Newton's second law of motion,

F=ma

According to Kinematical equation of motion,

v=u+at

Where, 

u- initial velocity,

a- Acceleration

t- Time

 

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